.tab{
	position: fixed;
	bottom: 0;
	width: 100%;
	background: #fff;
	height: 1rem;
	text-align:center;
	a{
		display: inline-block;
		width: 50%;
		height: 1rem;
		font-size: 0.40rem;
		border-radius:0 ;
		line-height: 1rem;
	}
	a:last-child{
	}
}